Ahh!
A true audiophile. I understand now.
I once was that way.
Till I sold my dahlquist dq10 speakers and my hafler amp and my LP collection .
Just as a note.
In Kodi you will need to edit(turnon) the settings for dolby and dts.
Under settings/system then select audio
At the bottom left is a gear icon keep selecting until you see expert mode. That will display all the options.for all the menus
Then enable the audio features you wish.
Also for movies I always felt mkv was a downgrade. Yes it saves disk space but that is not a issue for my setup.
One to one copies gives me the the complete true copy of a dvd/blueray movie as it was purchaced
Then I can play with upsampling for say 4:3 movies on playback if I wish.
If you have any play back issues as I said before you may need to purchace the codecs. They are very cheap.
Below is a excerpt from osmc faq page. I use osmc for the rasberry's
Quote:
I’m having an issue playing LiveTV / MPEG2 / VC1. What can I do about it?
You can buy the codecs here from the Raspberry Pi foundation.
It is still recommended that you purchase the codec packs from Raspberry Pi. These allow the device to decode MPEG2 and VC1 in hardware. If the codec packs are not present, then the device will attempt to play them in software using the CPU. This will work for SD material, however more demanding content may be problematic for the device. If you are planning to watch HD MPEG2 or VC1 content, we recommend you purchase the codec packs from the Raspberry Pi foundation.
These codecs can be configured via My OSMC -> Pi Config.
Here is a very good guide on the rasberry or probably your OCDROID it covers most all of your concerns including DAC and using two boards.
https://mediaexperience.com/raspberry-p ... h-raspbmc/